Dimmer switch



FIG. 1 is a front perspective view of a dimmer switch of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken line showing of dimmer switch is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a dimmer switch, as shown and described. 